Week 43 in AI: OpenAI launches Atlas browser challenging Chrome, Anthropic secures $50B Google TPU deal, SoftBank invests $22.5B in OpenAI, 850+ leaders demand superintelligence ban, AI infrastructure spending accelerates with $100B+ in mega deals.

📋 Quick Takeaways

• LangChain reaches unicorn status with $125M Series B at $1.25B valuation led by IVP
• Periodic Labs triggers $300M VC frenzy from ex-OpenAI and Google Brain researchers
• Google DeepMind identifies novel cancer immunotherapy pathway using AI breakthrough
• Critical memory chip shortage emerges as AI boom disrupts semiconductor supply chains
• Apple approaches historic $4 trillion market valuation driven by AI product demand

---

💰 Venture Capital & Funding

LangChain Achieves Unicorn Status with $125M Series B Funding

LangChain announced a $125 million Series B funding round on October 20, 2025, achieving a $1.25 billion valuation and officially entering unicorn status. The round was led by IVP, with participation from existing investors Sequoia and Benchmark, alongside new strategic investors including CapitalG, Sapphire Ventures, ServiceNow Ventures, Workday Ventures, Cisco Ventures, Datadog, Databricks, and Frontline.